What is the c'th term of -1839, -3683, -5527, -7371?
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What is the d'th term of -2, -48, -102, -158, -210, -252, -278?
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What is the b'th term of 77, 65, 29, -43, -163, -343?
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What is the t'th term of -3542, -3547, -3552?
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What is the y'th term of -3, -11, -27, -51?
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What is the j'th term of -80, -321, -714, -1253, -1932, -2745, -3686, -4749?
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What is the b'th term of -79, -295, -647, -1135, -1759, -2519, -3415?
一个美术生